* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

:root {
    --brand-orange: #ff7315;
    --brand-orange-glow: rgba(255, 115, 21, 0.6);
}

input[name="nav-tab"] { display: none; }

body {
    background: #000000;
    color: white;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

.wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

section {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 100px 10%;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

h2 {
    margin-bottom: 30px;
    font-size: 32px;
    color: var(--brand-orange);
}

#tab-home:checked ~ .wrapper #home,
#tab-about:checked ~ .wrapper #about,
#tab-skills:checked ~ .wrapper #skills,
#tab-projects:checked ~ .wrapper #projects,
#tab-contact:checked ~ .wrapper #contact {
    display: flex;
    z-index: 10;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    border-bottom: 2px solid var(--brand-orange);
}

.logo { font-size: 26px; font-weight: 700; color: white; text-decoration: none; }
.logo span { color: var(--brand-orange); }

nav { display: flex; gap: 25px; }
nav label {
    color: #bbb;
    cursor: pointer;
    transition: 0.3s;
    font-size: 14px;
    font-weight: 600;
}

nav label:hover { color: white; }

#tab-home:checked ~ header nav label[for="tab-home"],
#tab-about:checked ~ header nav label[for="tab-about"],
#tab-skills:checked ~ header nav label[for="tab-skills"],
#tab-projects:checked ~ header nav label[for="tab-projects"],
#tab-contact:checked ~ header nav label[for="tab-contact"] {
    color: var(--brand-orange);
    border-bottom: 2px solid var(--brand-orange);
}

/* ===================== HOME ANIMATIONS ===================== */

#home .inner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1000px;
    gap: 50px;
}

/* Home text animations */
@keyframes slideInLeft {
    0% { opacity: 0; transform: translateX(-80px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes typewriterBlink {
    0%, 100% { border-right-color: var(--brand-orange); }
    50% { border-right-color: transparent; }
}

#tab-home:checked ~ .wrapper #home .home-text h1 {
    animation: slideInLeft 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

#tab-home:checked ~ .wrapper #home .home-text h3 {
    animation: slideInLeft 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

#tab-home:checked ~ .wrapper #home .home-text p {
    animation: slideInLeft 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}

/* Home image animations */
@keyframes floatRotate {
    0%   { transform: translateY(0px) rotate(0deg); }
    25%  { transform: translateY(-12px) rotate(1deg); }
    50%  { transform: translateY(-6px) rotate(0deg); }
    75%  { transform: translateY(-14px) rotate(-1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes ringPulse {
    0%   { box-shadow: 0 0 20px var(--brand-orange-glow), 0 0 0px rgba(255,115,21,0); }
    50%  { box-shadow: 0 0 40px var(--brand-orange-glow), 0 0 60px rgba(255,115,21,0.25); }
    100% { box-shadow: 0 0 20px var(--brand-orange-glow), 0 0 0px rgba(255,115,21,0); }
}

@keyframes zoomIn {
    0%   { opacity: 0; transform: scale(0.5) rotate(-10deg); }
    100% { opacity: 1; transform: scale(1) rotate(0deg); }
}

#tab-home:checked ~ .wrapper #home .home-img-wrapper {
    animation:
        zoomIn 0.9s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both,
        floatRotate 5s ease-in-out 1.2s infinite,
        ringPulse 3s ease-in-out 1.2s infinite;
}

/* Spinning border ring around image */
.home-img-wrapper {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 5px solid var(--brand-orange);
    box-shadow: 0 0 20px var(--brand-orange-glow);
    overflow: hidden;
    position: relative;
}

/* Orbiting dot around the image */
.home-img-wrapper::before {
    content: '';
    position: absolute;
    top: -12px; left: 50%;
    width: 18px; height: 18px;
    background: var(--brand-orange);
    border-radius: 50%;
    transform-origin: 0 162px;
    box-shadow: 0 0 10px var(--brand-orange-glow);
    animation: orbitDot 3s linear infinite;
    z-index: 5;
}

@keyframes orbitDot {
    from { transform: translateX(-50%) rotate(0deg) translateY(0); }
    to   { transform: translateX(-50%) rotate(360deg) translateY(0); }
}

.home-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.home-text { flex: 1; }

/* ===================== ABOUT ANIMATIONS ===================== */

@keyframes fadeInSection {
    0%   { opacity: 0; transform: translateY(40px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes cardReveal {
    0%   { opacity: 0; transform: translateY(60px) scale(0.9); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

#tab-about:checked ~ .wrapper #about h2 {
    animation: fadeInSection 0.6s ease both;
}

#tab-about:checked ~ .wrapper #about .card:nth-child(1) {
    animation: cardReveal 0.7s cubic-bezier(0.34, 1.3, 0.64, 1) 0.1s both;
}
#tab-about:checked ~ .wrapper #about .card:nth-child(2) {
    animation: cardReveal 0.7s cubic-bezier(0.34, 1.3, 0.64, 1) 0.25s both;
}
#tab-about:checked ~ .wrapper #about .card:nth-child(3) {
    animation: cardReveal 0.7s cubic-bezier(0.34, 1.3, 0.64, 1) 0.4s both;
}

/* ===================== SKILLS ANIMATIONS ===================== */

@keyframes skillPop {
    0%   { opacity: 0; transform: scale(0) rotate(-15deg); }
    70%  { transform: scale(1.1) rotate(3deg); }
    100% { opacity: 1; transform: scale(1) rotate(0deg); }
}

#tab-skills:checked ~ .wrapper #skills h2 {
    animation: fadeInSection 0.6s ease both;
}

#tab-skills:checked ~ .wrapper #skills .skill-card:nth-child(1) {
    animation: skillPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both;
}
#tab-skills:checked ~ .wrapper #skills .skill-card:nth-child(2) {
    animation: skillPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.22s both;
}
#tab-skills:checked ~ .wrapper #skills .skill-card:nth-child(3) {
    animation: skillPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.34s both;
}
#tab-skills:checked ~ .wrapper #skills .skill-card:nth-child(4) {
    animation: skillPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.46s both;
}

/* Skill icon hover spin */
.skill-card img {
    transition: transform 0.4s ease;
}
.skill-card:hover img {
    transform: rotate(360deg) scale(1.2);
}

/* ===================== PROJECTS ANIMATIONS ===================== */

@keyframes projectSlideIn {
    0%   { opacity: 0; transform: translateX(-50px) skewX(-5deg); }
    100% { opacity: 1; transform: translateX(0) skewX(0deg); }
}

#tab-projects:checked ~ .wrapper #projects h2 {
    animation: fadeInSection 0.6s ease both;
}

#tab-projects:checked ~ .wrapper #projects .card:nth-child(1) {
    animation: projectSlideIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}
#tab-projects:checked ~ .wrapper #projects .card:nth-child(2) {
    animation: projectSlideIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both;
}
#tab-projects:checked ~ .wrapper #projects .card:nth-child(3) {
    animation: projectSlideIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.4s both;
}

/* Card image zoom on hover */
.card img {
    width: 100%;
    height: 150px;
    border-radius: 12px;
    object-fit: cover;
    margin-bottom: 12px;
    transition: transform 0.4s ease;
}
.card:hover img {
    transform: scale(1.07);
}

/* ===================== CONTACT ANIMATIONS ===================== */

@keyframes contactFade {
    0%   { opacity: 0; transform: translateX(-40px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes formFade {
    0%   { opacity: 0; transform: translateX(40px); }
    100% { opacity: 1; transform: translateX(0); }
}

#tab-contact:checked ~ .wrapper #contact h2 {
    animation: fadeInSection 0.6s ease both;
}
#tab-contact:checked ~ .wrapper #contact .contact-info {
    animation: contactFade 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}
#tab-contact:checked ~ .wrapper #contact .contact-form {
    animation: formFade 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both;
}

/* ===================== SHARED CARD STYLES ===================== */

.flex-box {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    overflow-y: auto;
    max-height: 70vh;
    padding: 20px;
}

.card {
    background: #111;
    padding: 15px;
    border: 2px solid var(--brand-orange);
    border-radius: 20px;
    width: 270px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px var(--brand-orange-glow);
}

.skill-card {
    background: #111;
    border: 2px solid var(--brand-orange);
    border-radius: 15px;
    padding: 20px;
    width: 120px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.skill-card:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 0 8px 25px var(--brand-orange-glow);
}

/* ===================== CONTACT STYLES ===================== */

.contact-flex {
    display: flex;
    flex-direction: row;
    gap: 40px;
    width: 100%;
    max-width: 900px;
    margin-top: 30px;
}

.contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: #111;
    padding: 20px;
    border-radius: 15px;
    border-left: 4px solid var(--brand-orange);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-item:hover {
    transform: translateX(6px);
    box-shadow: 0 4px 20px rgba(255,115,21,0.3);
}

.info-item i {
    font-size: 24px;
    color: var(--brand-orange);
}

.info-item h4 { font-size: 14px; color: #888; margin-bottom: 2px; }
.info-item p { font-size: 16px; font-weight: 600; }

.contact-form {
    flex: 1.5;
    background: #111;
    padding: 30px;
    border-radius: 20px;
    border: 1px solid #333;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-row { display: flex; gap: 15px; }

.form-input {
    width: 100%;
    padding: 12px 15px;
    background: #000;
    border: 1px solid #444;
    color: white;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
    border-color: var(--brand-orange);
    box-shadow: 0 0 8px rgba(255,115,21,0.3);
}

.submit-btn {
    background: var(--brand-orange);
    color: white;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.submit-btn:hover::after {
    width: 300px;
    height: 300px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 115, 21, 0.5);
}

.submit-btn:active {
    transform: translateY(0);
}

/* ===================== RESPONSIVE ===================== */

@media (max-width: 850px) {
    .contact-flex { flex-direction: column; }
    section { padding: 80px 5%; }
    #home .inner-content {
        flex-direction: column-reverse;
        text-align: center;
        gap: 30px;
    }
    .home-img-wrapper { width: 220px; height: 220px; }
}